Automotive antifreeze offered for sale in Wyoming must be registered.  Registration forms are available from the State Chemist at the Analytical Services Lab. The manufacturer or bottler of the product is responsible for registration.  There is no fee for registration and registration is permanent unless any of the following change.

• Product formulation
• Product label

For more information see Wyoming Petroleum and Antifreeze laws and regulations.

Click here for a printable antifreeze registration form.

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